Metallurgical apparatus – With means treating or handling gases exhausted by treating... – By contacting gas with nonmetallic liquid
Patent
1973-11-23
1976-08-03
Lake, Roy
Metallurgical apparatus
With means treating or handling gases exhausted by treating...
By contacting gas with nonmetallic liquid
C21C 106
Patent
active
039725189
ABSTRACT:
The invention discloses a method and apparatus for conditioning the gases discharged from a cupola. The apparatus consists of three flow connected vessels comprising first the cupola with improved gas conditioning means therein, secondly, a water spray tower and thirdly, a baghouse dust collector. The improved gas conditioning method and apparatus comprises a movably mounted conduit and nozzle for spraying cooling water through the cupola charge door during the burn-down period of cupola operation when the bed gas is not used to pre-heat the new charges in the cupola. The cooling water is used instead of large quantities of dilution air to temper the discharge gas at this point. Therefore, by the improved method, during burn-down the temperature of the discharged gas can be maintained at slightly above the normal cupola operational temperature without requiring discharge ducts and dust collection capacity for the additional dilution air. The elimination of the additional dilution air results in a corresponding decrease in the size and expense of the discharge ducts and the dust collecting system.
REFERENCES:
patent: 2761671 (1956-09-01), Tinker
patent: 3518817 (1970-07-01), Dell'Agnese et al.
patent: 3605386 (1971-09-01), Erwin et al.
patent: 3666248 (1972-05-01), Frundl et al.
patent: 3731910 (1973-05-01), Butler
The Coupla & Its Operation, American Foundrymen's Society, Third Edition, 1965, p. 85.
Bell Paul A.
Fuller Company
Lake Roy
Thomson Frank H.
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